1261400254614 has 24 divisors (see below), whose sum is σ = 2821196269632. Its totient is φ = 406903307760.

The previous prime is 1261400254591. The next prime is 1261400254633. The reversal of 1261400254614 is 4164520041621.

1261400254614 is a `hidden beast` number, since 1 + 2 + 6 + 14 + 0 + 0 + 25 + 4 + 614 = 666.

It is a super-2 number, since 2×1261400254614² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1130286409 + ... + 1130287524.

It is an arithmetic number, because the mean of its divisors is an integer number (117549844568).

Almost surely, 2^{1261400254614} is an apocalyptic number.

1261400254614 is an abundant number, since it is smaller than the sum of its proper divisors (1559796015018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1261400254614 is a wasteful number, since it uses less digits than its factorization.

1261400254614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260573972 (or 2260573969 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 1261400254614 in words is "one trillion, two hundred sixty-one billion, four hundred million, two hundred fifty-four thousand, six hundred fourteen".